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United States Patent | 5,735,269 |
Preece | April 7, 1998 |
A breathing regulator for use in underwater breathing comprising a diaphragm and poppet actuated upon user demand. The poppet including at least one baffle located intermediate its ends wherein when air is demanded by a user of the regulator air travels through the valve and continuously impinges upon the baffle and reduces the effort of the user required to operate the valve. The regulator further comprises a sleeve which is concentric about the air passage chamber which facilitates more efficient air delivery to the user. The sleeve is selectively controlled by the user either to enhance the venturi flow of air or to cancel the venturi effect, dependent upon the needs of the user.
Inventors: | Preece; Kim (Manly Vale, AU) |
Assignee: | T.D. Preece & Co. Pty. Ltd. (Manly Vale, NSW, AU) |
Appl. No.: | 508364 |
Filed: | July 28, 1995 |
Jun 06, 1989[AU] | PJ4577 |
Current U.S. Class: | 128/205.24; 128/201.28; 128/204.26; 137/495 |
Intern'l Class: | A62B 009/02; A62B 007/04; A61M 016/00; F16K 031/26 |
Field of Search: | 128/201.28,204.26,205.24,204.25 137/469,494,495 |
2767726 | Oct., 1956 | Feucht | 137/495. |
4503852 | Mar., 1985 | Christianson | 128/204. |